CN206675557U - Through skin traction sting device - Google Patents

Abstract

The utility model relates to a percutaneous traction puncture device, which comprises a traction needle, a percutaneous traction catheter, an extension rod and shrapnel. The catheter is in the shape of a cylinder that is open at both ends and covers the traction needle. The tail of the percutaneous traction catheter is provided with a cannula handle for holding and rotating to adjust the direction, and a traction rope placement groove passing through the recovery line is provided on one side of the middle part. On the other side of the middle part, there is a groove for clamping the extension rod. On the top, there is a shrapnel placement groove for fixing the shrapnel. On the side of the shrapnel placement groove, there is a fixing hole for fixing the extension rod; one end of the extension rod is provided with a movable hole for the extension tube. One end is respectively provided with a traction rope fixing hole and a suture traction opening, one end of the recovery line is fixed on the traction rope fixing hole, the extension rod rotates around the extension tube movable hole, and is engaged with the outer wall of the percutaneous traction catheter. The beneficial effect of the utility model is that the structure is simple, the use is convenient, the minimally invasive percutaneous puncture can be completed, and the pulling force and direction can be easily adjusted.

Description

percutaneous traction puncture device

technical field

The utility model relates to the field of medical technology, in particular to a device for percutaneously puncturing into a body cavity during an operation and guiding and pulling medical sutures in the body cavity.

Background technique

During surgery, especially laparoscopic surgery, it is often necessary to pull the organs or tissues in the body cavity in a specific direction to expand the surgical field of view and assist the surgical operation. Now clinically commonly used methods are to use retractors, clamps, and bare hands to perform corresponding traction. The newer method can fix medical sutures on specific tissue organs for traction. For example, during liver resection, medical sutures are sewed through a specific location near the liver tissue to be cut, and the sutures are pulled in a specific direction to assist in the completion of the operation. During the laparoscopic operation, due to the limitation of the operating equipment, the operating instruments can only be operated through a few operating holes. If the traction of the tissue to be operated can be increased, it will have more auxiliary effects on the operation, but Under the current technology, it is still only possible to pull and support the tissue through the instrument that enters through the operation hole. The current tissue organ traction operation under endoscopy has the following disadvantages: 1. It needs to use instruments for operation, which occupies the operating instruments, increases the difficulty of operation, and may need to increase the number of operation holes; , can only be pulled in one direction through the skin or through the operation hole. When the pulling direction needs to be changed, it needs to be punctured again, which increases the operation steps and damage; 3. The poor effect of tissue pulling will increase the difficulty of the operation.

In the prior art, aiming at the existing technique of stretching after suturing through the tissue, it is necessary to guide and pull the medical suture in the body cavity after percutaneous puncture into the body cavity, so as to achieve the purpose of assisting the operation. device.

Utility model content

The purpose of the utility model is to provide a device for percutaneously puncturing into the body cavity and guiding and pulling the medical sutures in the body cavity during the operation.

Percutaneous traction and puncture devices, including:

A traction needle, the traction needle is needle-shaped, the head is provided with a hook thread groove, and the tail is provided with a traction needle handle;

Percutaneous traction catheter, the percutaneous traction catheter is a cylindrical shape with open ends and used to cover the traction needle, the tail of the percutaneous traction catheter is provided with a sleeve handle for holding and rotating to adjust the direction, the middle part is One side is provided with a traction rope placement slot passing through the recovery line, the other side of the middle part is provided with a slot for clamping the extension rod, and the top is provided with a shrapnel placement slot for fixing the shrapnel, and the side of the shrapnel placement slot is provided for fixing the extension rod. the fixing hole of the rod;

An extension rod, one end of the extension rod is provided with an extension tube movable hole, and the other end is respectively provided with a traction rope fixing hole and a suture traction port, one end of the recovery line is fixed on the traction rope fixing hole, and the extension rod extends around the The movable hole of the tube rotates and is engaged with the outer wall of the percutaneous traction catheter;

Elastic pieces, one side of the elastic piece is provided with a downward fixing groove, and the other side is provided with an upwardly tilted elastic plectrum.

The handle of the pulling needle is circular.

The inside of the percutaneous traction catheter is provided with an elastic sealing pressure ring.

The sleeve handle is in the shape of an oval ring.

The groove for placing the traction rope is linear.

The shrapnel placement groove and fixing hole are fixed on the percutaneous traction catheter through nuts.

The traction rope fixing hole and the suture traction port are placed close to each other, and the suture traction port is semi-open.

The fixing groove is inverted U-shaped.

The traction needle of the utility model is needle-shaped, the head is provided with a hook thread groove, and the tail is provided with a traction needle handle; the percutaneous traction catheter is open at both ends and is cylindrical for trapping the traction needle, and the tail of the percutaneous traction catheter is There is a casing handle for holding and rotating to adjust the direction, one side of the middle part is provided with a traction rope placement slot passing through the recovery line, the other side of the middle part is provided with a slot for clamping the extension rod, and the top is provided with a shrapnel placement for fixing the shrapnel The side of the shrapnel placement groove is provided with a fixing hole for fixing the extension rod; one end of the extension rod is provided with an extension tube movable hole, and the other end is respectively provided with a traction rope fixing hole and a suture traction port, and one end of the recovery line is fixed on the traction On the rope fixing hole, the extension rod rotates around the movable hole of the extension tube, and is engaged with the outer wall of the percutaneous traction catheter; one side of the shrapnel is provided with a downward fixing groove, and the other side is provided with an upwardly tilted elastic paddle. Insert the puncture guide needle into the percutaneous traction catheter sleeve, and pull the extension rod of the recovery line outward to cling to the wall of the percutaneous traction catheter sleeve. At this time, puncture vertically at the skin of the target position, and the percutaneous traction catheter sleeve is ready It can easily pass through the skin, hook the suture that needs to be pulled in the hook groove, pull out the puncture guide needle, the suture can be drawn out of the body through the percutaneous traction catheter, loosen the recovery thread, and the elastic force generated by the shrapnel can make it stretch The rod is unfolded, and the suture in the body is hung into the suture traction port on the extension rod to perform the corresponding pulling operation. By adjusting the length of the suture outside the body, the pulling force can be adjusted. Once the suture is tightened, the extension rod is fixed with the percutaneous traction catheter to form an L-shaped structure, and the extension can be adjusted by rotating the sleeve handle at the end of the percutaneous traction catheter. The direction of the rod to adjust the direction of pulling. After use, the entire device can be easily pulled out of the body by pulling the recovery wire outward to make the extension rod close to the wall of the percutaneous traction catheter sleeve. The beneficial effect of the utility model is that the structure is simple, the use is convenient, the minimally invasive percutaneous puncture can be completed, the sutures that need to be pulled and guided can be easily drawn out of the body, and the pulling force and direction can be easily adjusted. Some surgical procedures do not produce additional effects, especially enabling the implementation of tissue stretching techniques in laparoscopy.

Description of drawings

Fig. 1 is the perspective view of the utility model;

Fig. 2 is the three-dimensional view of the pulling needle of the utility model;

Fig. 3 is the perspective view of the utility model percutaneous traction catheter;

Fig. 4 is a sectional view of the utility model percutaneous traction catheter;

Fig. 5 is the front view of the utility model percutaneous traction catheter;

Figure 6 is a perspective view of the utility model extension rod;

Figure 7 is a top view of the utility model extension rod;

Fig. 8 is a perspective view of the shrapnel of the present utility model;

In the figure: 1. traction needle, 2. percutaneous traction catheter, 3. extension rod, 4. shrapnel, 11. hook thread groove, 12. traction needle handle, 21. casing handle, 22. traction rope placement slot, 23 , recovery line, 24, shrapnel placement groove, 25, fixing hole, 26, sealing pressure ring, 31, extension tube activity hole, 32, pulling rope fixing hole, 33, suture pulling port, 41, fixing groove, 42, elasticity Picks.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.

Example 1:

Percutaneous traction puncture device, comprising: traction needle 1, the traction needle 1 is needle-shaped, the head is provided with hook groove 11, the tail is provided with traction needle handle 12; percutaneous traction catheter 2, percutaneous traction catheter 2 is two ends Open and cylindrical for covering the traction needle 1, the tail of the percutaneous traction catheter 2 is provided with a sleeve handle 21 that catches the hook thread slot 11, and a traction rope placement slot passing through the recovery line 23 is provided on one side of the middle part 22. The other side of the middle part is provided with a slot for clamping the extension rod 3, and the tail is provided with a shrapnel placement groove 24 for fixing the shrapnel 4, and the side of the shrapnel placement groove 24 is provided with a fixing hole 25 for fixing the extension rod 3; the extension rod 3 One end of the extension rod 3 is provided with an extension tube movable hole 31, and the other end is respectively provided with a traction rope fixing hole 32 and a suture traction port 33, and one end of the recovery line 23 is fixed on the traction rope fixing hole 32, and the extension rod 3 is wound around the extension tube The movable hole 31 rotates and engages with the outer wall of the percutaneous traction catheter 2; the elastic piece 4 has a downward fixing groove 41 on one side and an upwardly tilted elastic plectrum 42 on the other side.

The pull needle handle 12 is circular. An elastic sealing ring 26 is arranged inside the percutaneous traction catheter 2 . The sleeve handle 21 is in the shape of an oval ring. Traction rope placement groove 22 is linear. The shrapnel placement groove 24 and the fixing hole 25 are fixed on the percutaneous traction catheter 2 through nuts. The traction rope fixing hole 32 and the suture traction port 33 are placed close to each other, and the suture traction port 33 is semi-open. The fixing groove 41 is inverted U-shaped.

The needle body of the puncture guide needle 1 is cylindrical, its needle point is conical, and the side has an inward wedge-shaped notch hook groove 11, which can be used to hook the surgical suture and guide it through the percutaneous traction catheter. Thereby it is convenient to fix outside the body, and the circular finger ring at the end of the needle is the traction needle handle 12, which is used for holding and moving the puncture guide needle.

The percutaneous traction catheter 2 is in the shape of a cylinder with both ends open, and the puncture guide needle 1 can just come in and out freely in it. The role of rotation to adjust the direction; the rear section of the side of the percutaneous traction catheter 2 has a traction rope placement groove 22 with both ends being a closed ring and a longitudinal groove open in the middle, and the recovery line 23 can easily pass through the closed ring structure and pass through it. Passing and sliding, one end fixes the traction rope fixing hole 32 at the front end of the extension rod 3, and one end passes through the traction rope placement groove 22 at the tail end of the percutaneous traction catheter 2, and the extension rod 3 can be recovered by shrinking the recovery line 23 and tightly fitted on it. On the side wall of the percutaneous traction catheter 2, the front end of the percutaneous traction catheter 2 has a shrapnel placement groove 24 adapted to the shape of the shrapnel 4, and the shrapnel 4 can be safely placed on the front end of the percutaneous traction catheter 2. There are also circular recessed structures on both sides as fixing holes 25, which are used to connect and fix the extension rod 3 and enable it to complete the opening and closing action. Closed, so that the puncture guide needle 1 can easily pass through the percutaneous guide tube. When the percutaneous guide needle 1 is pulled out, the opening is closed by the elasticity of the sealing pressure ring 26, and the gas with a certain pressure will not flow from the percutaneous traction tube 2. side overflow.

The extension rod 3 is a semi-arc rod-shaped structure, which can be tightly attached to the wall of the percutaneous traction catheter 2 when tightened, so that the percutaneous traction catheter 2 can easily enter and exit the skin, and can be connected with the percutaneous traction catheter after abduction. Catheters 2 are separated at right angles at most to form an L shape. There is an extension tube movable hole 31 at the tail end of the extension rod 3, which can match and be fixed with the fixed hole 25 on the percutaneous traction catheter 2. After fixing, the extension rod 3 can use the extension tube movable hole 31 is axis recovery and abduction. There is a traction rope fixing hole 32 at the top of the extension rod 3, which is connected to the recovery line 23, so that when the recovery line 23 is tightened, the extension rod 3 can be recovered until it is close to the outside of the extension rod 3, and the top of the extension rod 3 There is also an open ring structure called the suture traction port 33, which can easily hang the sutures in the body into the ring of the suture traction port 33, and pull the sutures in different directions through the rotation and movement of the extension rod 3 .

One end of the shrapnel 4 is an I-shaped fixing groove 41 compatible with the shrapnel placement groove 24. After fixing, the shrapnel 4 is firmly fixed on the percutaneous traction guide sleeve 2, and the other end is a long strip bent at a certain angle. Elastic paddle 42, after being fixed, the elongated structure bends to the outside of the percutaneous traction guide sleeve 2, and when the extension rod 3 is recovered and close to the percutaneous traction guide sleeve 2, it will squeeze the shrapnel 4 to produce deformation and outward elastic force , when no external force is applied to the extension rod 3 , the elastic force will cause the extension rod 3 to pop out in a direction away from the percutaneous traction guide tube 2 .

The utility model can be used in laparotomy or laparoscopic surgery, and can conveniently establish a channel on the skin through which sutures can pass, and guide the tissues fixed by sutures in different directions by pulling the sutures , so as to achieve the role of expanding the surgical field of view and assisting the surgical process. When in use, insert the puncture guide needle into the percutaneous traction catheter sleeve, and pull the extension rod of the recovery line outward to cling to the wall of the percutaneous traction catheter sleeve. At this time, the skin at the target position is punctured vertically and the percutaneous traction catheter sleeve The tube can easily pass through the skin, hook the suture that needs to be pulled in the hook groove, pull out the puncture guide needle, the suture can be drawn out of the body through the percutaneous traction catheter, loosen the recovery thread, and the elastic force generated by the shrapnel can The extension rod is expanded outward, and the sutures in the body are hung in the traction rope fixing holes on the extension rod to carry out the corresponding pulling operation. The pulling force can be adjusted by the length of the suture outside the body. Once the suture is tightened, the extension rod is fixed at right angles to the percutaneous traction catheter. Rotate the control handle at the end of the percutaneous traction catheter to adjust the direction of the extension rod to adjust The direction of pull. After use, the entire device can be easily pulled out of the body by pulling the recovery wire outward to make the extension rod close to the wall of the percutaneous traction catheter sleeve.

The needle body of the puncture guide needle 1 is cylindrical, with a length of 10 cm and a diameter of 2 mm. Guide it through the percutaneous traction catheter. There is a circular ring at the end of the needle as the traction needle handle 12 with a ring diameter of 4 cm, which is used for holding and moving the puncture guide needle.

The percutaneous traction catheter 2 is in the shape of a cylinder with two ends open, with an inner diameter of 3mm. There are a plurality of connected annular control handles 21 at the tail end of the percutaneous traction catheter 2, and the diameter of each ring is 4cm; The end is a closed ring with an inner diameter of 0.5mm and the middle is an open longitudinal groove for the traction rope placement groove 22, the inner diameter of the groove is 0.5mm, and the recovery line 23 is a tough soft rope with a diameter of less than 0.5mm, which can easily pass through the closed ring structure and pass through it, one end fixes the front end of the extension rod 3, and one end passes through the tail end of the percutaneous traction catheter 2, and the front end of the percutaneous traction catheter 2 has a shrapnel placement groove 24 that is suitable for the shape of the shrapnel 4, so that the shrapnel can be securely 4. Placed on the front end of the percutaneous traction catheter 2, there is a circular concave structure on both sides of the shrapnel placement groove 24, which is a fixing hole 25 with a diameter of about 1mm, which is used to connect and fix the extension rod 3 and enable it to complete the opening and closing action , the cylindrical opening at the tail end of the percutaneous traction catheter 2 is closed by a middle open and elastic sealing pressure ring 26, the sealing pressure ring 26 is made of rubber or other elastic materials, so that the puncture guide needle 1 can easily pass through the percutaneous guiding catheter , when the percutaneous guide needle 1 is pulled out, the opening is closed by the elasticity of the sealing pressure ring 26, and the gas with a certain pressure will not overflow from the tail end of the percutaneous traction catheter 2.

The extension rod 3 is a semi-arc rod-shaped structure with a length of 6 cm and an arc-shaped inner diameter of 1.4 cm. When tightened, it can be tightly attached to the wall of the percutaneous traction catheter 2, so that the percutaneous traction catheter 2 can easily enter and exit the skin. After that, it can be separated from the percutaneous traction catheter 2 at a right angle at most. There is an extension tube movable hole 31 at the tail end of the extension rod 3 with a diameter of about 1mm, which can be matched with the fixing hole 25 on the percutaneous traction catheter 2 and fixed. After fixing, the extension rod 3 It can take the movable hole 31 of the extension tube as the axis for recovery and abduction. There is a traction rope fixing hole 32 at the top of the extension rod 3, which is a small hole with a diameter of 0.5 mm, connected to the recovery line 23, and there is an open ring at the top of the extension rod 3. The shape structure is a suture traction port 33 with an annular inner diameter of 0.5 mm and an opening of 1 mm, so that the sutures in the body can be easily hung into the ring of the suture traction port 33.

One end of the shrapnel 4 is an I-shaped fixing groove 41 compatible with the shrapnel placement groove 24, and the fixing groove can fix the shrapnel 4 and the extension rod 3 on the percutaneous traction guide sleeve 2 by screws or other strip-shaped fixing bars, and the other end It is an elongated elastic plectrum 42 bent at a certain angle, with a length of 3 cm and a width of 0.5 mm. After fixing, the elongated structure bends to the outside of the percutaneous traction guide tube 2 at a bending angle of 30-45 degrees.

The shrapnel 4 can also be integrated on the percutaneous traction guide sleeve 2 . The elastic piece 4 can also be other devices capable of generating elastic force to make the extension rod 3 pop out in a direction away from the percutaneous traction guide tube 2 .

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. The utility model does not depart from the spirit and scope of the utility model There will also be various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (8)

1. The percutaneous traction puncture device is characterized in that, comprising: A traction needle (1), the traction needle (1) is needle-shaped, the head is provided with a hook thread groove (11), and the tail is provided with a traction needle handle (12); The percutaneous traction catheter (2), the percutaneous traction catheter (2) is a cylinder with open ends and used to entangle the traction needle (1), the tail of the percutaneous traction catheter (2) is provided with a Hold and rotate the casing handle (21) to adjust the direction, one side of the middle part is provided with a traction rope placement slot (22) passing through the recovery line (23), and the other side of the middle part is provided with a slot for clamping the extension rod (3) , the top is provided with a shrapnel placement groove (24) for fixing the shrapnel (4), and the side of the shrapnel placement groove (24) is provided with a fixing hole (25) for fixing the extension rod (3); An extension rod (3), one end of the extension rod (3) is provided with an extension tube movable hole (31), and the other end is respectively provided with a traction rope fixing hole (32) and a suture traction port (33), and the recovery line ( One end of 23) is fixed on the traction rope fixing hole (32), and the extension rod (3) rotates around the extension tube movable hole (31), and is engaged with the outer wall of the percutaneous traction catheter (2); Elastic pieces (4), one side of the elastic piece (4) is provided with a downward fixing groove (41), and the other side is provided with an upwardly tilted elastic plectrum (42). 2. The percutaneous traction and puncture device according to claim 1, characterized in that, the traction needle handle (12) is circular. 3. The percutaneous traction puncture device according to claim 1, characterized in that an elastic sealing ring (26) is provided inside the percutaneous traction catheter (2). 4. The percutaneous traction and puncture device according to claim 1, characterized in that, the cannula handle (21) is in the shape of an oval ring. 5. The percutaneous traction and puncture device according to claim 1, characterized in that, the traction rope placement groove (22) is linear. 6 . The percutaneous traction puncture device according to claim 1 , characterized in that, the shrapnel placement groove ( 24 ) and the fixing hole ( 25 ) are fixed on the percutaneous traction catheter ( 2 ) through nuts. 7. The percutaneous traction puncture device according to claim 1, characterized in that, the traction rope fixing hole (32) and the suture traction port (33) are placed close to each other, and the suture traction port (33) is half Open style. 8. The percutaneous traction and puncture device according to claim 1, characterized in that, the fixing groove (41) is in an inverted U shape.